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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "VsyncChild.h"
#include "mozilla/SchedulerGroup.h"
#include "mozilla/VsyncDispatcher.h"
#include "nsThreadUtils.h"
namespace mozilla::dom {
VsyncChild::VsyncChild()
: mIsShutdown(false), mVsyncRate(TimeDuration::Forever()) {
MOZ_ASSERT(NS_IsMainThread());
}
VsyncChild::~VsyncChild() { MOZ_ASSERT(NS_IsMainThread()); }
void VsyncChild::AddChildRefreshTimer(VsyncObserver* aVsyncObserver) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mObservers.Contains(aVsyncObserver));
if (mIsShutdown) {
return;
}
if (mObservers.IsEmpty()) {
Unused << PVsyncChild::SendObserve();
}
mObservers.AppendElement(std::move(aVsyncObserver));
}
void VsyncChild::RemoveChildRefreshTimer(VsyncObserver* aVsyncObserver) {
MOZ_ASSERT(NS_IsMainThread());
if (mIsShutdown) {
return;
}
if (mObservers.RemoveElement(aVsyncObserver) && mObservers.IsEmpty()) {
Unused << PVsyncChild::SendUnobserve();
}
}
void VsyncChild::ActorDestroy(ActorDestroyReason aActorDestroyReason) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mIsShutdown);
mIsShutdown = true;
if (!mObservers.IsEmpty()) {
Unused << PVsyncChild::SendUnobserve();
}
mObservers.Clear();
}
mozilla::ipc::IPCResult VsyncChild::RecvNotify(const VsyncEvent& aVsync,
const float& aVsyncRate) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mIsShutdown);
SchedulerGroup::MarkVsyncRan();
mVsyncRate = TimeDuration::FromMilliseconds(aVsyncRate);
for (VsyncObserver* observer : mObservers.ForwardRange()) {
observer->NotifyVsync(aVsync);
}
return IPC_OK();
}
TimeDuration VsyncChild::GetVsyncRate() { return mVsyncRate; }
} // namespace mozilla::dom
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